Amazon.com: G3 H13 HEPA Replacement Filter Fit for Air Purifier - 3 Pcs True HEPA Filter Compatible with AMEIFU G3 Air Purifier and VEWIOR A3 Air Purifier : Home & Kitchen
200g G3 Paint Booth Pre-Efficiency Filter Media - China G3 Filter Media, Paint Booth Filter | Made-in-China.com
Pocket Filters available in Filter Classes ISO Coarse formerly G3 – G4